#------------------------------------------------------------------------------ #$Date: 2012-02-28 14:14:52 +0200 (Tue, 28 Feb 2012) $ #$Revision: 35911 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/00/16/1001619.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/ # # All data on this site have been placed in the public domain by the # contributors. # data_1001619 _chemical_name_systematic 'Bismuth barium oxide (1.5/0.5/2.75)' _chemical_formula_structural '(Bi1.5 Ba0.5) O2.75' _chemical_formula_sum 'Ba0.5 Bi1.5 O2.75' _[local]_cod_chemical_formula_sum_orig 'Ba.5 Bi1.5 O2.75' _publ_section_title ; The anionic superconductor Bi~3~BaO~5.5~: A bcc structure closely related to the perovskite. Relationships with anti $-alpha-AgI ; loop_ _publ_author_name 'Michel' 'Pelloquin, D' 'Hervieu, M' 'Raveau, B' _journal_name_full 'Journal of Solid State Chemistry' _journal_coden_ASTM JSSCBI _journal_volume 109 _journal_year 1994 _journal_page_first 122 _journal_page_last 126 _cell_length_a 4.3822(2) _cell_length_b 4.3822(2) _cell_length_c 4.3822(2) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 84.2 _cell_formula_units_Z 1 _symmetry_space_group_name_H-M 'I m -3 m' _symmetry_Int_Tables_number 229 _symmetry_cell_setting cubic loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' 'y,z,x' 'z,x,y' 'x,z,y' 'y,x,z' 'z,y,x' 'x,-y,-z' 'y,-z,-x' 'z,-x,-y' 'x,-z,-y' 'y,-x,-z' 'z,-y,-x' '-x,y,-z' '-y,z,-x' '-z,x,-y' '-x,z,-y' '-y,x,-z' '-z,y,-x' '-x,-y,z' '-y,-z,x' '-z,-x,y' '-x,-z,y' '-y,-x,z' '-z,-y,x' '-x,-y,-z' '-y,-z,-x' '-z,-x,-y' '-x,-z,-y' '-y,-x,-z' '-z,-y,-x' '-x,y,z' '-y,z,x' '-z,x,y' '-x,z,y' '-y,x,z' '-z,y,x' 'x,-y,z' 'y,-z,x' 'z,-x,y' 'x,-z,y' 'y,-x,z' 'z,-y,x' 'x,y,-z' 'y,z,-x' 'z,x,-y' 'x,z,-y' 'y,x,-z' 'z,y,-x' '1/2+x,1/2+y,1/2+z' '1/2+y,1/2+z,1/2+x' '1/2+z,1/2+x,1/2+y' '1/2+x,1/2+z,1/2+y' '1/2+y,1/2+x,1/2+z' '1/2+z,1/2+y,1/2+x' '1/2+x,1/2-y,1/2-z' '1/2+y,1/2-z,1/2-x' '1/2+z,1/2-x,1/2-y' '1/2+x,1/2-z,1/2-y' '1/2+y,1/2-x,1/2-z' '1/2+z,1/2-y,1/2-x' '1/2-x,1/2+y,1/2-z' '1/2-y,1/2+z,1/2-x' '1/2-z,1/2+x,1/2-y' '1/2-x,1/2+z,1/2-y' '1/2-y,1/2+x,1/2-z' '1/2-z,1/2+y,1/2-x' '1/2-x,1/2-y,1/2+z' '1/2-y,1/2-z,1/2+x' '1/2-z,1/2-x,1/2+y' '1/2-x,1/2-z,1/2+y' '1/2-y,1/2-x,1/2+z' '1/2-z,1/2-y,1/2+x' '1/2-x,1/2-y,1/2-z' '1/2-y,1/2-z,1/2-x' '1/2-z,1/2-x,1/2-y' '1/2-x,1/2-z,1/2-y' '1/2-y,1/2-x,1/2-z' '1/2-z,1/2-y,1/2-x' '1/2-x,1/2+y,1/2+z' '1/2-y,1/2+z,1/2+x' '1/2-z,1/2+x,1/2+y' '1/2-x,1/2+z,1/2+y' '1/2-y,1/2+x,1/2+z' '1/2-z,1/2+y,1/2+x' '1/2+x,1/2-y,1/2+z' '1/2+y,1/2-z,1/2+x' '1/2+z,1/2-x,1/2+y' '1/2+x,1/2-z,1/2+y' '1/2+y,1/2-x,1/2+z' '1/2+z,1/2-y,1/2+x' '1/2+x,1/2+y,1/2-z' '1/2+y,1/2+z,1/2-x' '1/2+z,1/2+x,1/2-y' '1/2+x,1/2+z,1/2-y' '1/2+y,1/2+x,1/2-z' '1/2+z,1/2+y,1/2-x' loop_ _atom_type_symbol _atom_type_oxidation_number Bi3+ 3.000 Ba2+ 2.000 O2- -2.000 loop_ _atom_site_label _atom_site_type_symbol _atom_site_symmetry_multiplicity _atom_site_Wyckoff_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_attached_hydrogens _atom_site_calc_flag Bi1 Bi3+ 2 a 0. 0. 0. 0.75 0 d Ba1 Ba2+ 2 a 0. 0. 0. 0.25 0 d O1 O2- 6 b 0.5 0. 0. 0.4583 0 d _refine_ls_R_factor_all 0.0339 _cod_database_code 1001619